<template>
<el-container class="home-con">
    <!-- 头部 -->
  <el-header>
      <div>
  <img src="../assets/heima.png" alt="">
  <span>电商后台管理系统</span>
  </div>
      <el-button type="info" @click="lagout">退出</el-button>
  </el-header>
  <!-- 页面主体区域 -->
  <el-container>
      <!-- 侧边栏 -->
    <el-aside :width="iscollapse ? '64px':'200px'">
      <div class="toggle" @click="toggle_button">|||</div>
         <!-- 菜单 -->
         <el-menu
      class="el-menu-vertical-demo"
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409EFF"
      :unique-opened='true'
      :collapse="iscollapse"
      :collapse-transition="false"
      :router="true"
      :default-active="activepath">
      <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
      <!-- 一级菜单模板区域 -->
       <template slot="title">
           <!-- 图标 -->
          <i :class="iconobj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>
         <!-- 二级菜单 -->
        <el-menu-item :index="'/'+subItem.path"
         v-for="subItem in item.children" :key="subItem.id"
         @click="savenamestatus('/'+subItem.path)">
            <template slot="title">
           <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <!-- 文本 -->
          <span>{{subItem.authName}}</span>
        </template></el-menu-item>
    </el-submenu>     
    </el-menu>
    </el-aside>
    <!-- 右边主体 -->
    <el-container>
      <el-main>
        <router-view></router-view>
      </el-main>
      <el-footer>Footer</el-footer>
    </el-container>
  </el-container>
</el-container>
</template>
<script>
export default {
  data() {
    return {
      // 左侧菜单数据
      menulist: [],
      iconobj: {
        '125':'iconfont icon-user',
        '103':'iconfont icon-tijikongjian',
        '101':'iconfont icon-shangpin',
        '102':'iconfont icon-danju',
        '145':'iconfont icon-baobiao'

      },
      // 是否折叠
      iscollapse:false,
      // 被激活的链接
      activepath:''
    }
  },
  created() {
    this.getMenuList()
    this.activepath = window.sessionStorage.getItem('activepath')
  },
  methods: {
    lagout() {
      window.sessionStorage.clear()
      this.$router.push("/login")
    },
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
      console.log(res)
    },
    toggle_button() {
      // 折叠切换
      this.iscollapse = !this.iscollapse
    },
    savenamestatus(activepath) {
      // 保存链接的激活状态
      window.sessionStorage.setItem('activepath', activepath)
      this.activepath = activepath
    }
  },
}
</script>
<style scoped lang='less'>
.home-con{
    height: 100%;
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    >div{
        display: flex;
        align-items: center;
        span{
            margin-left: 15px;
        }
    }
}
.el-aside{
    background-color: #333744;
    .el-menu {
      border-right:none;
    }
}
.el-main{
    background-color: #eaedf1;
}
.iconfont{
  margin-right: 10px;
}
.toggle{
  font-size: 10px;
  background-color: #4A5064;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
